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The Aermacchi M-290 TP RediGO is a turboprop-powered military basic trainer aircraft and liaison aircraft. It was originally manufactured by Valmet of Finland as the L-90 TP Redigo, a development of their earlier training aircraft for the Finnish Air Force. The L-90 was the last military aircraft designed and produced in Finland.
The Aerauto PL.5C was a roadable aircraft developed in Italy in the early 1950s. It was a high-wing two-seat monoplane whose wings could be folded to quickly transform it into an automobile. It was different from many such projects in that it used its pusher propeller for propulsion not only in the air, but on the road as well. Development was abandoned in 1953.
The North American XB-28 (NA-63) Dragon was an aircraft proposed by North American Aviation to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. It never entered production, with only two prototypes being built.
The Martin B-33 was a World War II American bomber aircraft. It was designed by the Glenn L. Martin Company as the Martin Model 190 and was a high-altitude derivative of the company's B-26 Marauder. Two different designs were developed, first as a twin-engined aircraft and then as a four-engined aircraft. The four-engined version was ordered by the United States Army Air Forces, but the program was cancelled before any aircraft were built.
IVL A.22 Hansa was a Finnish license copy of the German two-seat, low winged single-engined seaplane Hansa-Brandenburg W.33, which had been designed by Hansa und Brandenburgische Flugzeugwerke in the 1920s.
The Agusta AZ.8L, or Agusta-Zappata AZ.8L, was an Italian airliner prototype first flown on 9 June 1958. It was of conventional low-wing monoplane configuration with tricycle undercarriage and all-metal construction. Filippo Zappata's design grew out of a twin-engined transport designated AZ.1 that was never built.
The Fokker F.25 Promotor, first flown in 1946, was a single-engined, twin-boomed, four-passenger monoplane with a pusher engine mounted at the rear of a central nacelle. It was of wooden construction and has fitted with a retractable nosewheel undercarriage. One feature of the design was that instead of a 2 + 2 seating, the pilot sat in front to the left, and all three passengers were on a bench seat to the rear of him. Alternatively, when being used as an air ambulance aircraft, it could carry a patient on a stretcher, which was loaded through a hatch in the aircraft's nose. The F.25 was evocative of the pre-war G.I design. The F.25 was based upon the design of the Difoga 421 aircraft, home-built and -designed during World War II by Frits Diepen, a Ford garage owner from Tilburg, the Netherlands. His intention was to create an easy to fly personal aircraft. Due to the war an aircraft engine was not available and instead it used a Ford V-8.
The Caproni Ca.101 was a three-engine Italian airliner which later saw military use as a transport and bomber. It was designed in 1927 and first flown in 1928.
The Caudron R.11, was a French three-seat twin-engine long range escort fighter biplane developed and produced by Caudron during the First World War.
The Xian H-8 bomber was a Chinese military aircraft and a possible successor to the aging twin-engined Xian H-6 jet bomber. It is referred to as Xian H-7 in some sources. The proposed designs were reported to be an enlarged H-6 with four or six underwing engines, but the project was canceled in 1971 in early development stage.
The PZL-102 Kos (blackbird) is a Polish two-seat touring and training monoplane designed and built by PZL.
The Gotha Go 149 was a military aircraft developed in Germany in the mid-1930s for training fighter pilots. It was a conventional low-wing cantilever monoplane with tailwheel undercarriage, the main units of which retracted inwards. The wing was wooden, while the monocoque fuselage was metal. Two prototypes were constructed, and an armed version was also proposed as a light home-defence fighter (Heimatschutzjäger) armed with two 7.92 mm (.312 in) MG 17 machine guns, but the Luftwaffe did not purchase either version of the design, and no further examples were built.
The Klemm Kl 105 was a two-seat sport aircraft developed in Germany in 1938. It was a low-wing cantilever monoplane of conventional design with fixed, tailskid undercarriage, and side-by-side seating for two within an enclosed cockpit. Construction throughout was of wood, with the fuselage built using a new semi-monocoque technique which Klemm patented. Plans to produce the design in series were abandoned with the outbreak of the Second World War.
The Ilyushin Il-103 is a single-engine, low-wing training aircraft developed by the Ilyushin Design Bureau that started in 1990 in the Soviet Union. The aircraft is now produced in Russia. It was the first Russian aircraft to achieve Federal Aviation Administration certification, in 1998, for sales in the United States.
The Fisher Horizon is a family of Canadian two-seats-in-tandem, conventional landing gear, single-engined, high-wing monoplane kit aircraft designed for construction by amateur builders. The Horizon 1 was inspired by the Aeronca Champion and its later version, the Bellanca Citabria, while the Horizon 2 was inspired by the Cessna O-1 Bird Dog.
The Nakajima B3N was a prototype Japanese carrier-based torpedo-bomber aircraft of the 1930s. A single-engined biplane with a crew of three, it was unsuccessful, only two being built.
The Arado Ar 77 was a German twin-engined monoplane, designed as an advanced training aircraft from 1934.
The Nakajima D3N was a Japanese carrier-based dive bomber of the 1930s. Three prototypes were built for the Imperial Japanese Navy, but no production followed, with the Aichi D3A being selected instead.
The Nihon L7P was a Japanese military seaplane built in World War II in the early 1940s.
The Mitsubishi Ka-12 or B4M was a Japanese carrier-based torpedo bomber of 1934. Two prototypes were built by Mitsubishi for the Imperial Japanese Navy. A development of the company's 3MT10 of 1932, the design differed primarily in the use of a radial engine and metal wing, which made the whole aircraft significantly lighter and faster. However, the design could not realise its potential as the wing was inefficiently stiff and the B4M was not selected for production. The competing Yokosuka B4Y was chosen to serve on the Navy's aircraft carriers instead.
References
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 501.
- Nowarra, Heinz (1983). Die deutsche Luftrüstung 1933–1945. Bonn: Bernard and Graefe. pp. Teil 2, p.173.